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AT&T: How to change your phone number
Select Go to my account from the My AT&T menu. Scroll down and select the Manage wireless option under your device. Under the Device options tab, select Change phone number. AT&T lists the ...
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AT&T: How to find and update your APN settings
It provides the details your device needs to connect to a wireless ... connecting to the internet even if you use one of the best AT&T phones. Consider updating your APN settings if you exhausted ...